|
Abstract Objective To observe the clinical efficacy of total hip arthroplasty(THA) for the treatment of osteoarthritis secondary to developmental dysplasia of the hip (DDH) .[Methods]A total of 12 patients(12 hips) with osteoarthritis secondary to DDH from Aug .2008 to Dec .2012 included 2 patients with Crowe typeⅠ ,2 patients with Crowe type Ⅱ ,1 patient with Crowe type Ⅲ and 7 patients with Crowe type Ⅳ .Preopera-tive Harris score was 46 .8 ± 15 .2 ,and average limb shortening was 4 .5cm(3~6 .5cm) .All patients under-went total hip arthroplasty of non-femoral shortening osteotomy .Among them ,5 patients(5 hips) underwent femoral head autograft and acetabular reconstruction .[Results]All patients were followed up for the average 28 (12~67) months .One patient with proximal femoral split during the operation had bony healing by steel wire bundling during the operation at 12 months of follow up .No prosthesis loosening was found in all patients at the final follow up .Five patients underwent acetabular autograft and had no absorption of the grafted bone block by reexamination 12 months after operation ,and the grafted bone block was fused with the grafted bone bed .One patient(lengthening for more than 4cm) with numbness in lateral leg after operation recovered after 1 month .No complications such as joint dislocation ,infection ,ectopic ossification and deep venous embolism oc-curred in all patients .Harris score was (85 .48 ± 9 .67) at the final follow up ,and there was significant differ-ence between the final follow up and before operation( t=4 .52 ,P<0 .05) .[Conclusion]For patients with os-teoarthritis secondary to DDH ,precise measurement and evaluation before the operation ,complete soft tissue lysis during operation and correct management of acetabulum and femur can obtain good short-term clinical ef-f icacy .
|
|
|
|
|
|
2014, Vol. 31 
